If you're using leverage, and not able to lose more money than the fixed amount of shares you purchased, how else would it work? These instruments are a way to

If you're using leverage, and not able to lose more money than the fixed amount of shares you purchased, how else would it work? These instruments are a way to do fancy portfolio balancing, not bets and speculation. You'll need "real" leverage where you can come out in the negative instead of $0 to do that.